10123143242 has 8 divisors (see below), whose sum is σ = 15595112676. Its totient is φ = 4924772352.

The previous prime is 10123143229. The next prime is 10123143271. The reversal of 10123143242 is 24234132101.

It can be written as a sum of positive squares in 2 ways, for example, as 9959840401 + 163302841 = 99799^2 + 12779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68399543 + ... + 68399690.

Almost surely, 2^10123143242 is an apocalyptic number.

10123143242 is a deficient number, since it is larger than the sum of its proper divisors (5471969434).

10123143242 is a wasteful number, since it uses less digits than its factorization.

10123143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136799272.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 10123143242 its reverse (24234132101), we get a palindrome (34357275343).

The spelling of 10123143242 in words is "ten billion, one hundred twenty-three million, one hundred forty-three thousand, two hundred forty-two".